PHP: Object assignment to static property, is it illegal?

Question

Is it illegal to assign some object to static property?

I am getting HTTP 500 error in below code.

require_once(\'class.linkedlist.php\');

class Sin         


        

Answer 1

you should take care, that you don't override the static property on each instantiation of a object, therefore do:

class SinglyLinkedlistTester {
    private static $ll;

    public function __construct() {
        if (!self::$ll) self::$ll = new Linklist();
    }
}